One type of mutual etiquette amongst Sāṃbhojika (commonsel co-religionist) ascetics;
to rise from the seat for paying respect to an approaching senior ascetic.
'abbhuṭṭhāṇe yāvaretti" abhyutthānamāsanatyāgarūtpamityaparaṃ sambhogāsambhogasthānamityarthaḥ. tatrābhyutthānaṃ pārśvasthādeḥ kurvaṃstathaivāsambhogyaḥ.
(Sama 12.2 Vṛ Pa 22)